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The Underpotential Determination of Lead Using the Laboratory-made Gold Electrode Flow Cell
Paper Type  |
Contributed Paper |
Title |
The Underpotential Determination of Lead Using the Laboratory-made Gold Electrode Flow Cell |
Author |
Prinya Masawat and Saisunee Liawruangrath |
Email |
prinyam@nu.ac.th |
|
Abstract: The analysis of lead(II) by continuous flow square-wave anodic stripping voltammetry (SWASV) at a gold electrode flow cell is described. Various experimental variables have been optimized to yield low detection limit and good precision. The detection limits for a 30 s and 600 s electrodeposition were 3.5 and 0.38 μg L-1, respectively. The recoveries were found to be 113 +/- 1.8 % and 108 +/- 2.3 % (n=5) in spiked drinking water samples and 110 +/- 4.8 % and 106 3.4% (n=5) in spiked tap water samples. Reproducibility on measurement of solution containing 5 μg L-1 lead (II) (%R.S.D., n = 20) was 2.1 %. Measurements in the presence of typical interferences such as copper(II), cadmium(II), zinc(II), iron(II), chromium(VI), and mercury are also reported.
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Start & End Page |
355 - 369 |
Received Date |
2009-01-16 |
Revised Date |
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Accepted Date |
2009-02-21 |
Full Text |
Download |
Keyword |
flow cell, lead, gold electrode, square-wave anodic stripping voltammetry, flow injection analysis |
Volume |
Vol.35 No.2 (MAY 2008) |
DOI |
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SDGs |
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